0S-1591 — BOLT,MACHINE

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

0S-1591: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON, head_height: 0.290 INCHES NOMINAL IN, thread_length: 1.130 INCHES NOMINAL IN, fastener_length: 1.500 INCHES NOMINAL IN, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-015-6841, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS

0S-1591

NSN: 5306-01-015-6841
FSC: 5306 — Bolts
CAGE: 0141B — NAVANTIA SA SME. DIV NAVANTIA HQ (ESP)

SPECIFICATIONS

material	STEEL OVERALL
head_style	HEXAGON
head_height	0.290 INCHES NOMINAL IN
thread_length	1.130 INCHES NOMINAL IN
fastener_length	1.500 INCHES NOMINAL IN
thread_direction	RIGHT-HAND
surface_treatment	OIL AND PHOSPHATE OVERALL
width_between_flats	0.560 INCHES NOMINAL IN
nominal_thread_diameter	0.375 INCHES IN
minimum_tensile_strength	150000 POUNDS PER SQUARE INCH LBS
thread_quantity_per_inch	16
thread_series_designator	UNIFIED NATIONAL COARSE (UNC)
NSN	5306-01-015-6841

COMPONENT DIAGRAM

KEY FEATURES

•

HEAD HEIGHT: 0.290 INCHES NOMINAL IN

•

FASTENER LENGTH: 1.500 INCHES NOMINAL IN

•

THREAD LENGTH: 1.130 INCHES NOMINAL IN

•

NOMINAL THREAD DIAMETER: 0.375 INCHES IN

•

HEAD STYLE: HEXAGON

•

THREAD DIRECTION: RIGHT-HAND

•

WIDTH BETWEEN FLATS: 0.560 INCHES NOMINAL IN

•

SURFACE TREATMENT: OIL AND PHOSPHATE OVERALL

TECHNICAL CHARACTERISTICS

HEAD HEIGHT	0.290 INCHES NOMINAL IN
FASTENER LENGTH	1.500 INCHES NOMINAL IN
THREAD LENGTH	1.130 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER	0.375 INCHES IN
HEAD STYLE	HEXAGON
THREAD DIRECTION	RIGHT-HAND
WIDTH BETWEEN FLATS	0.560 INCHES NOMINAL IN
SURFACE TREATMENT	OIL AND PHOSPHATE OVERALL
MINIMUM TENSILE STRENGTH	150000 POUNDS PER SQUARE INCH LBS
THREAD QUANTITY PER INCH	16

SUBSTITUTES & CROSS-REFERENCES 3

S1591Reference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

6HB743Reference document

Same NSN cross-reference

Reference document — Secondary reference

12KP742Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 0S-1591?

0S-1591 is a BOLT,MACHINE.

What parts can replace 0S-1591?

There are 3 known substitutes for 0S-1591: S1591, 6HB743, 12KP742. Substitute compatibility should be verified for your specific system.

What is the NSN for 0S-1591?

0S-1591 is cataloged in the U.S. Government catalog under NSN 5306-01-015-6841. This indicates validated use in U.S. government and defense supply chains.

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